ML20153B141

Requests Addl Info Re Amend B of Chapters 5 & 9 of CESSAR-DC,Sys 80+ for Review Completion

ML20153B141
Person / Time
Site:	05000470
Issue date:	06/28/1988
From:	Vissing G Office of Nuclear Reactor Regulation
To:	Scherer A ABB COMBUSTION ENGINEERING NUCLEAR FUEL (FORMERLY
References
PROJECT-675A NUDOCS 8807120720
Download: ML20153B141 (5)

Text

o June 28, 1988 Project No. 675- "

Mr. A. E. Scherer, Director Nuclear Licensing Combustion Engineering 1000 Prospect Hill Road Post Office Box 500 Windsor, Connecticut 06095-0500

SUBJECT:

RE0 VEST FOR ADDITIONAL INFORMATION CONCERNING CHAPTER 5 and 9, CESSAR-DC, SYSTEM 80+, CHEMICAL ENGINEERING BRANCH Our Chemical Engineering Branch has reviewed Amendment B of Chapters 5 and 9 of CESSAR-DC, System 80+, transmitted by your letter dated April 11, 1988 and has identified the need for additional information. The enclosed Request for Additional Information describes the needed information. Our schedule calls for the information to be received within 90 days from the date of this letter.

Sincerely, original sianed by Guy S. Vissing, Project Manager Standardization and Non-Power

> Reactor Project Directorate Division of Reactor Projects III, IV, Y and Special Projects Office of Nuclear Reactor Regulation

Enclosure:

As stated cc: See next page Distribution:

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1. o,, UNITED STATES 8 c. NUCLEAR REGULATORY COMMISSION g rj WASHINGTON,0. C. 20555 8 June 28, 1988 k * * * . * ,o Project No. 675 Mr. A. E. Scherer, Director Nuclear Licensing Combustion Engineering 1000 Prospect Hill Road Post Office Box 500 Windsor, Connecticut 06095-0500

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION CONCERNING CHAPTER 5 and 9, CESSAR-DC, SYSTEM Ba+, CHEMICAL ENGINEERING BRANCH Our Chemical Engineering Branch has reviewed Amendment B of Chapters 5 and 9 of CESSAR-DC, System 80+, transmitted by your letter dated April 11, 1988 and has identified the need for additional information. The enclosed Request for Additional Information describes the needed information. Our schedule calls for the information to be received witHn 90 days from the date of this letter.

Sincerely, Guy S. Vissing, Project Manager Standardization and Non-Power Reactor Project Directorate Division of Reactor Projects III, IV, Y and Special Projects Office of Nuclear Reacter Regulation

Enclosure:

As stated a i

cc: See next page I

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s Combustion Engineering, Inc. Project No. 675 Advanced CESSAR cc: Mr. C. B. Brinkman, Manager Washington Nuclear Operations Combustion Engineering, Inc.

7910 Woodmont Avenue, Suite 1310 Bethesda, Maryland 20814 Dr. Michael Green Manager of Licensing Combustion Engineering 1000 Prospect Hill Road Post Office Box 500 Windsor, Connecticut 06095-0500 r

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s REQUEST FOR ADDITIONAL INFORMATION CONCERNING CHEMCIAL ENGINEERING BRANCH REVIEW 0F AMENDMENT B 0F CHAPTERS 5 AND 9 COMBUSTION ENGINEERING CESSAR-DC, SYSTEM 80+

PROJECT NO. 675 281-14 Steam generator secondary water chemistry specifications is pg. 5.1-14 referenced as being in Section 10.3.4. However, in Amendment Item X.2 12 to Chapter 20 this subject is included in Section 10.3.5.

Which section is intended to discuss steam generator secondary water chemistry?

281-15 Fluid chemistry should be more specific, such as, reactor pg. 5.1-16 coolant water chemistry.

281-16 MISV is a typo and should be MSIV.

pg. 5.1-18

- Item 7 281-17 Amendment B states that the fire protection system should be pg. 5.1-22 consistent with the requirements of GDC. The fire protection Item p-3 section should be more specific and should reference GDC 3 and 5.

281-10 Reachable hologens is a type and should be leachable halogens.

pg. 5.2-13 Section 5.2.3.2.3 281-19 The unite of conductivity is incorrect and should beirmhos/cm pg. 5.2-19 orjrS/cm.

Section 5.2.3.4.1.2.4 281-20 Spray flow, minimum, 375 gal / min and spray flow, continuous, Table 5.4.10-1 1.5 gal / min seems inconsistent. Shouldn't continuous spray flow be greater than the minimum?

281-21 The maximum amount of oxygen from air dissolved in water pg. 9.3-36 at 25' is approximately 8 ppm. This only applies at Section 9.3.4.3.4 atrospheric pressure. Please clarify the statement.

l 281-22 pH analysis temperature indicates 77", The temperature l Table 9.3.4-1 unit should be included (i.e. 77'F). I Sheet 1 of 2 l

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2Pi-03 The Advanced Light Water Reactor Requirements Document pg. 9.3-19 indicates that the design of the letdown purification line Section 9.3.4.1.2 from the reactor coolant system should be such that 30 seconds to one minute is allowed for fluid to flow from the letdown connection to the containment penetration to reduce radiation exposures. Confirm that this consideration is factored in the design of the CVCS system.

281-24 The Advanced Light Water Reactor Requirements Document pg. 9.3-19 addresses hydrogen utilization precautions in the CVCS system design and arrangement to minimize the potential for and the effects of a hydrogen ignition. Indicate design features to prevent explosive hazards associated with use of hydrogen in the volume control tank.

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